Ans Pre-PSPM1 2012/2013 - KMM

Question Number	Answer	Marks
1 (a)	Information Technology (IT) is defined as the use of computer hardware and software to store, retrieve, and manipulate information. OR The study, design, development, implementation, support or management of computer-based information systems. OR Computer and communication technologies, such as communication links to the Internet that provides help and understanding to the end user. OR The use of computer-based information systems to process, transmit and store data and also information. OR The use of computer and communications equipment and software to create, design, store, transmit, interpret and manipulate information in various format.	J2
1 (b)	Self access learning Distance learning Online forum Smart School Edutainment	J1 J1
1 (c)	Cloud computing is an Internet service that provides computing needs to computer users, whereby data is stored at a server on the Internet and available anywhere the Internet can be accessed. OR Cloud computing is internet-based computing whereby shared resources, software and information are provided to computers and other devices. OR Cloud computing is an Internet services provided by a cloud provider to computer users. The services provided can be server resources, computing needs, networking, computer security, etc.	J2
1 (d)	Client Internet Service Provider	J1 J1 J1
1 (e)	Google - Verizon Amazon - Openstack Microsoft - Salesforce AT&T - VMware Citrix OR any acceptable answer	J1
2 (a)	= = 16384 + 3840 + 96 + 4 = 20324	J1 (working) J1 (working) J1
2(b)	1 1 0 1 0 1 0 1 8 4 2 1 8 4 2 1 8 + 4 + 0+1 0 + 4+0+1 = D5	J1 (working) J1 (working) J1
2(c)	2 180 2 90 0 2 45 0 2 22 1 2 11 0 2 5 1 2 2 1 2 1 0 2 0 1 = 10110100	JIJI (working) JI (working) J1
3 (a)	F = X + Y' Z	J2
3 (b)	1	J1
3 (c)		J3 (each gate correct - J1)
3 (d)	Unicode → 1 character = 16 bits Cloud Computing = 15 character = 15x16 = 240 bits	J2
3 (e) i	512/1024 = 0.5 GB	J1
3 (e) ii	2 x 1024 = 2048 MB	J1
3 (e) iii	1 x 1024 x 1024 = 1048756 bytes	J1
4 (a)	Processor → Interprets and carries out the basic instructions that operates a computer. Memory → Electronic components that store instructions, data, and results	J2 J2
4.(b)	Primary storage Secondary storage - Fast data access - Slower data access - Expensive - Cheaper - RAM, ROM - CD, DVD,Hard Disk,etc	J2 (choose one of them) J1 J1
4. (c)	i) Fetch ii) Decode * Must follow the sequence	J1 J1
4.(d)	Sound Card	J2
4.(e) i	Operating System Utility Program	J1
4 (e) ii	Allows user to perform a specific tasks.	J2
4 (e) iii	Electronic Spreadsheet Software	J2
4 (e) iv	MS Excel Calc Lotus 123	J1
4 (e) v	Calculation can be done automatically Changing data automatically updates calculations More flexibility or any acceptable answer	J2
5 (a)	Network is a collection of computers and devices connected together via communication devices and transmission media.	J2
5 (b)	To share hardware, software or resources, or any acceptable answer	J1
5 (c)	Communication Device : modem, switch, hub etc. Transmission media : wireless, wired , cable, AP. etc.	J1 J1
5 (d) (i)		J1 for correct topology J1 for correct terminator position
5(d)(ii)	To prevent signal bounce back into network	J1
5(d)(iii)	1. If one device fails, ONLY that device is affected. 2. Devices can be added to or removed from network with little or no disruption. 3. Easy to troubleshoot and isolate problem.	J1 for correct answer. Maximum J2
5(e)	- A cable forms a closed loop (ring) with all computers and devices arranged along the ring. - Token Ring	J1 J1
6 (i)	-University of California at Los Angeles -University of California at Santa Barbara -The Stanford Research Institute -University of Utah	J1 for correct answer. Maximum J2
6(ii)	Not-for-profit R&D project	J2
6(iii)	Dial Up Broadband	J1 J1
6(iv)	-Data is transmitted through radio waves. Or - Provide high-speed Internet connections to compatible or properly equipped wireless computers and device.	J2 for any answer
6(v)	- Satellite Internet Broadband	J1
6(vi)	DSL Cable Modem Fixes Wireless Cellular radio network Fiber to primises	J1 for correct answer. Maximum J3
6(vii)	Any number that separate by 4 dot, which number is between 0-255	J1
7(i)	-An electronic document on the Web, which can contain text, graphics, audio, video, animation - Dynamic pages - Static pages	J1 J1 J1
7(ii)	A Web browser is an Application Software that allows users to access and view Web pages. - Firefox, IE, Safari, and any acceptable answer	J1 J2
7(iii)	An e-mail address is a combination of a user name and a domain name that identifies a user.	J1
	-location on an Internet server that permits users to chat with each other. - real-time Internet communications service that notifies you when one or more people are online .	J1 J1
7(iv)	Newsreader is an application needed to join newsgroup	J1
6
7
8 (a) i	Information theft	J2
8 (a) ii	Software theft OR Information theft	J2
8 (a) iii	Unauthorised access OR Internet / Network Attack	J2
8 (b) i	Malicious Code / Malware – (Virus, Worm, Trojan Horse, Rootkit, Spyware) Botnet DoS Attack Spoofing Backdoor Unauthorised access and use Natural Disaster Information theft System Failure	J1 (Select any one)
8 (b) ii	Antivirus Antispyware Data backup Firewall Cryptography Human aspect: awareness Identification & authentication	J1 JI (Select any two)
8 (c)	Cryptography	J1